C贸digo fuente para qiskit.opflow.evolutions.trotterizations.trotterization_factory

# This code is part of Qiskit.
# (C) Copyright IBM 2020, 2023.
# This code is licensed under the Apache License, Version 2.0. You may
# obtain a copy of this license in the LICENSE.txt file in the root directory
# of this source tree or at http://www.apache.org/licenses/LICENSE-2.0.
# Any modifications or derivative works of this code must retain this
# copyright notice, and modified files need to carry a notice indicating
# that they have been altered from the originals.

"""TrotterizationFactory Class"""

from qiskit.opflow.evolutions.trotterizations.qdrift import QDrift
from qiskit.opflow.evolutions.trotterizations.suzuki import Suzuki
from qiskit.opflow.evolutions.trotterizations.trotter import Trotter
from qiskit.opflow.evolutions.trotterizations.trotterization_base import TrotterizationBase
from qiskit.utils.deprecation import deprecate_func

[documentos]class TrotterizationFactory: """Deprecated: A factory for conveniently creating TrotterizationBase instances."""
[documentos] @staticmethod @deprecate_func( since="0.24.0", additional_msg="For code migration guidelines, visit https://qisk.it/opflow_migration.", ) def build(mode: str = "trotter", reps: int = 1) -> TrotterizationBase: """A factory for conveniently creating TrotterizationBase instances. Args: mode: One of 'trotter', 'suzuki', 'qdrift' reps: The number of times to repeat the Trotterization circuit. Returns: The desired TrotterizationBase instance. Raises: ValueError: A string not in ['trotter', 'suzuki', 'qdrift'] is given for mode. """ if mode == "trotter": return Trotter(reps=reps) elif mode == "suzuki": return Suzuki(reps=reps) elif mode == "qdrift": return QDrift(reps=reps) raise ValueError(f"Trotter mode {mode} not supported")